It's far to say Pinlo's Power Slice ($80) is among the slimmest battery packs we've ever seen, if not the absolute thinnest. Measuring only 0.2" tall, the 7200mAh cell is spread out over an 8" by 5" area covered in aluminum. Because it's so thin, the dual 2.4-Amp USB ports actually compact down when not in use; if you need them, you must slide back the metal housing, which expands the opening to the proper height. The battery is designed to be portable,…
